Apparently there is no such thing as a hyperbolic triangle - a triangle is a 3-sided figure. Pleas remember this - it is impossible to construct a figure with 3 sides if one of them is a quadratic curve, You will be banned by the mathematicians here for insisting a hyperbolic triangle does exist. This means there is no way to determine any areas, and we cannot calculate orbital motion. Oh well, back to the drawing-board. the experts have spoken: "It's not a triangle if one of the sides is the curve of a hyperbola. " I'm probably going to get banned for agreeeing with this, there is no such thing as a hyperbolic triangle; there cannot be such a thing as a hyperbolic right triangle, therefore. Except no proof exists that the above is true.